There isn’t just one way to sound like a scientist, or to sound like a scholar. Scientists and scholars come from a wide variety of backgrounds and speak in different ways, in different accents, dialects and languages.

In classrooms across the U.S., students do too. No student (or teacher) leaves their language patterns at the door when they enter a classroom—even classes like math and science, where language is often seen as secondary.

For instance, consider what one mother told us about an interaction she witnessed in her son’s first grade classroom. One of the boys, who is African-American, was playing a game and realized he didn’t have the materials he needed. He raised his hand and said to the teacher, “I don’t got no dice.” His teacher immediately responded, “Joshua, we speak English in this class!” The mother was appalled and felt that this experience could discourage Joshua from speaking up at school.

When students absorb and internalize such messages, they can experience what linguist William Labov called “linguistic insecurity”—feelings of anxiety and apprehension that can take root even at an early age.

These negative experiences with language and communication in the classroom can have a direct impact on students’ academic achievement. As early as kindergarten, students who come to school speaking in similar ways as their teachers are more likely to get ahead, whereas those who speak differently are more likely to fall behind. These language-based educational inequalities disproportionately affect African-American students and other students of color, English language learners and students who come from a social class or regional background that is different from that of their teacher.

As Joshua’s mother said to us, “There must be a better way to respond.”

Putting Language Into the Equation

For the past decade, we’ve worked not only as scholars but as teacher trainers as well. Some of our professional development workshops are geared toward a particular group of educators: those who teach K-12 science, technology, engineering and mathematics, also known as STEM.

In 2011, we began a three-year study with 60 K-12 STEM educators in Maryland and Virginia to explore how language can affect teaching and learning for STEM students, particularly for African-American youth. The teachers were eager to learn, but also to share experiences from their own classroom teaching about the role that language can play in STEM—whether it’s answering a word problem in math, reading an engineering text or writing a lab report.

One of the biggest challenges is that, in STEM, word problems, questions, texts and directions often contain unfamiliar terms, both technical and nontechnical. In fact, nontechnical words can often be as problematic as the more specialist terms of science. “It’s kind of like learning a language twice,” a geometry teacher said, because “the vocabulary can be so intense.”

And it’s not just vocabulary that matters; everyday classroom communication plays an important role, too. “We all use language,” one STEM teacher recognized, “whether it’s in the directions we give or the handouts we use.”

What Can We Do Right Now?

How can teachers make an immediate difference in their classes? For educators who want to know how to take this information and apply it directly to their teaching, there are relevant, accessible materials.

In addition to a comprehensive website, we created a series of webinars about the role of language in teaching and learning across the disciplines, as well as a podcast in which educators themselves describe how this information positively impacted their teaching and their relationships with students.

These materials can help teachers learn how to respond to students who speak differently, avoid cultural and linguistic bias on tests and design culturally supportive curricula.

In the course of our research, we also created a free iOS app (“Valuable Voices”) for educators. The app provides a year of monthly classroom-ready exercises and activities, adaptable for elementary through high school students. One exercise introduces students to the concept of language change by analyzing the linguistic innovations of William Shakespeare. Another activity invites students to explore “linguistic landscapes,” or the language found in public places and spaces around them.

Language Matters

Good teaching relies on effective communication, whether it’s in English class, biology class or any subject in between. The words that teachers and students use, their meanings and their intentions are central to classroom interactions and dynamics. Ensuring that students, peers and teachers from diverse backgrounds understand and communicate respectfully with each other is often just as important as helping students understand the material in their textbooks.

Language matters – not just for fostering mutual respect, but for making sure that every student has an equal opportunity to succeed.

As one high school algebra teacher who participated in our study pointed out:

“Spending time showing students how their language is respected, and allowing them to have the skills to analyze different ways of speaking and writing, creates a classroom where we celebrate what we can each bring to our learning environment.”

Simply put, she said, “It’s worth our time.”

Christine Mallinson is an Associate Professor of Language, Literacy, and Culture, University of Maryland, Baltimore County.

Anne Charity Hudley is an Associate Professor of Education, English, and Linguistics, College of William & Mary.